MILESTONE TRACKER
What your baby may be learning, by age.
Move the marker to your baby's age to see the CDC milestone checkpoint for that age, what most babies can do by then, and what often comes next.
CDC checkpoints are at 2, 4, 6, 9 and 12 months. Between checkpoints, this guide uses the younger checklist. Milestones are a guide, not a test.
By 6 months
Reaching out
Grabbing, rolling, and babbling as your baby engages with the world.
Social & Emotional
- Knows familiar people
- Likes to look at themselves in a mirror
- Laughs
Language & Communication
- Takes turns making sounds with you
- Blows raspberries
- Makes squealing noises
Thinking & Learning
- Puts things in their mouth to explore them
- Reaches to grab a toy they want
- Closes lips to show they do not want more food
Movement & Physical
- Rolls from tummy to back
- Pushes up with straight arms on tummy
- Leans on hands to support themselves when sitting
Coming next
By nine months, your baby begins to sit without support, look when you call their name, and enjoy games like peek-a-boo.
CDC developmental milestones are things most children (75% or more) can do by a certain age. This guide is for general information and is not a standardized developmental screening tool. If your baby was born more than 3 weeks early, use corrected age. If your baby is not meeting one or more milestones, has lost skills they once had, or you have any concerns, please speak with your doctor. You can also contact us if you would like to connect with our in-house pediatrician.
Milestone guidance: CDC · Learn the Signs. Act Early.
Get parenting notes that help.
Useful things for the first year, plus gifting ideas. Free. Stop anytime.